100001222222122 has 16 divisors (see below), whose sum is σ = 161540878098600. Its totient is φ = 46154283913152.

The previous prime is 100001222222107. The next prime is 100001222222137. The reversal of 100001222222122 is 221222222100001.

It is an interprime number because it is at equal distance from previous prime (100001222222107) and next prime (100001222222137).

It can be written as a sum of positive squares in 4 ways, for example, as 74573397376921 + 25427824845201 = 8635589^2 + 5042601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100001222222122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4777848 + ... + 14927500.

Almost surely, 2^{100001222222122} is an apocalyptic number.

100001222222122 is a deficient number, since it is larger than the sum of its proper divisors (61539655876478).

100001222222122 is a wasteful number, since it uses less digits than its factorization.

100001222222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528617.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 100001222222122 its reverse (221222222100001), we get a palindrome (321223444322123).

The spelling of 100001222222122 in words is "one hundred trillion, one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".